Elevator-door



W. M. BRUNST.

ELEVATOR DOOR.

APPLICATION FILED NOV-24,1919.

Patented Oct; 5, 1920.

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gvwamfoz Willi amMBrunst W. MfBRUNSTi ELEVATOR DOOR.

APPLICATION FILED Nov. 24. 19:9.

Patented 005. 5,1920.

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WILLIAM M. BRUNST, OF COLUMBUS, OI-II TUBING COMPANY, OF COLUIViBU 0,ASSIGNOR TO THE KINNEAR MANUFAC- S, OHIO, A. CORPORATION OF OHIO.

ELEVATOR-DOOR.

Specification of Letters Patent.

Patented Oct. 5, 1920.

Application filed November 24, 1919. Serial No. 340,265.

7 0 all whom it may concern Be it known that I, VILLIAM M. BRUNST, acitizen of the United States residing at Columbus in the county ofFranklin and State of Ohio, have invented a certain new and usefulImprovement in Elevator-Doors, of which the following is aspecification.

This invention relates to the type of elevator door that is designed tobe raised to project above the top of the doorway and pass the sill ofthe next doorway above, the aim-of the invention being to provide animproved construction of this type of door and means for operating andlatching the same. Other objects will appear from the detaileddescription herein.

The invention is embodied in the example herein shown and described, thefeatures of novelty being finally claimed.

In the accompanying drawings Figure; 1 is mainly a view in elevationwith parts in section looking toward the doorway side or" the elevatorshaft.

Fig. 2 is a vertical section on the line II-1I Fig. 1 looking to theright and showing the door. down or in closed position.

Fig. 3 is a similar section showing the door partially raised.

i In the views 5, 5,;designate the floors of the building and 6 the wallof the building through which the doorways leading to the shaft or wellare formed. The tops of said doorways are indicated by broken line inFigs. 2 and 3 and the lower portion of a doorway is indicated at 7 Fig.l. The sills of the doorway are indicated at 8. Hinged at 9 at each sideof'the lower portion of the doorway are-channels 10 having their opensides facing each other and being of a length to extend upward beyondthe line of the top of the doorway.

Each doorway is to be provided with a door like that designated 11 andthe same may be counterweighted as by weights 12 hung on chains 12connected with rods 13 projecting from the upper ends of the door andpassing over pulleys 14 suitably journaled in the well to facilitate theoperation of the door. 7 The door 11 is of a width to fit and slide inthe channels 10 and said door is capable of oscillation toward and fromthe doorway with the channels on the hinging points 9.

Secured on the wall 6 and flanking the upper end of the doorway is abracket 17 having a cam slot 18 into which extends the rod 13 so thatwhen the door is raised it is deflected at its upper portion by saidslot. Also secured on the wall 6 and flanking the upper end of thedoorway is a bracket 19 containing fixed therein a short channel piece22. Said bracket is also furnished with a stop 22 adapted to limit thedeflection of the door (caused by the cam slot) to a position where thehinged channels 1Q aline with the short channel pieces 22. Hence whenthe door is raised it continues its upward movement through saidchannels 22. The short channel pieces 22 serve as guides to keep thedoor in a definite position during the movement after it enters saidpieces. The cam slots are open at their w upper ends and the saidchannel pieces guide the rods 13 into said slots when the door islowered toward closing position. The rods 13 can be provided withsuitable anti-friction devices where they. engage the cam slots.

The car or carriage designated 43 is equipped with a vertically arrangedendless belt or chain-23 traveling over wheels 24 and 24C journaled inthe top and bottom of the car, said belt being provided with a cross pin23.

Secured to the lower corners of the door are brackets 15 containingsuitable hearings to receive a rock shaft 16. Mounted on the brackets 15is a gravity latch 40 carrying and guided by a sliding stem or pin 11working in a perforated boss' 12. On the building near the door sill invertical line with the path of the pin 41 is a two-part stop 30 againstthe upper part of which the pin 41 abuts when the door is lowered tonearly closing position, said abutment causing a cessation of downwardmovement of the pin and thelatch 40..

vThe rock shaft has secured to each of its ends a latching devicecomprising a pair of parallel wings each having hooks or lugs 25 26, 27and 28. The hook 25 engages the lower side of the stop-30 on the wall ofthe well and latches the door in closed position as shown in Fig. 2. Thehook 27 is engaged by the pin 23 on the endless belt 23 when the lattermember is operated to raise the door as shown in Fig. 3. When thelatching device is raised the hook 28 thereof is 'thrown under thegravity latch 40 and hook with the :out stopping at a floor or a lockedin that position so that when the door is to be closed by reversingmovement of the belt 23 and its pin 23, the'latter engages the hook orprojection 26 to force the When, however, in the tion taking place onlywhenthe operating mechanism provided for that purpose is 1 actuated,such mechanism in the instance.

shown being the belt'or belts 23 and the pins thereon. The latch anddoor actuating de- I vices where shown in pairs are so provided tosecure a balance in contact and strains.

\Vith this construction it will be observed that the door can be of fullheight topermit the movement of passengers and freight into and out ofthe car and also that the door can be raised into the well to projectsomewhat above the top of the car.

Theforms ofthe parts can be. changed without departing from the gist ofthe in ventionas claimed.

What I claim is V l. The combination with a building having an elevatorshaft, and a doorwayleading from the floor ofthe building to the shaft,and a car to'move in said shaft, of an hinged to the shaft wall.

upwardly slidingdoorfor said doorway, and .a gulde and support for saiddoor 2. The combination with a building hav ing an elevator shaft, and adoorway leading from the fioor'of the building to the shaft, anda cartomove in said shaft, of an upwardly sliding door for said doorway andguides for the" door hinged to the shaft wall near the lower corners ofthe doorway.

3. Thei'combination with a building having an elevator shaft, and adoorway leading 7 *from the floor ofthe buildingto the shaft" andv acarto move in said shaft, of an upi-vardly shding door for said doorway,a

; guide and support. for said door hinged'to "the shaft wall, and meansfor causing the deflection "of the. door; and I guide when the door israised;

4. The combination with a building having an elevator shaft, and adoorwayleading from. the floor of the bu-ilding: to the shaft,

1 and afcarto move in saidshaft, of'an upwardly sliding door for saiddoorway, and gu des for the door hinged to the shaft wall near thelower-corners of the doorway and means for deflecting the door andguides when the door is raised, said means consisting of 'a pin on thedoor and a bracket in the shaft having a camslot engaged by said pin. 1

5. The combination with a building having an elevator shaft, a doorwayleading from the floor of the building to the shaft,

' and a car to'move in said shaft, of an upwardly sliding door for saiddoorway, a guide and support for said door hinged to the shaft wall,means for causing the deflection of the door and said guide, and asecond but stationary guide for the door with which the first namedguide is alined when the engage the shaft tohold the door closed andmeans, on the car tonengage said rocking member to release the latchingprojection and raise the door.

7. The combination with the door of an elevator shaft'that is-raised andlowered and a car in said shaft, of means for'latehing and raising the,door. comprising a rocking member carried by the door, said rockingmember having a latchingprojection to engage the shaft to hold the doorclosed, means onthe door to hold said latching projection disengaged,and means on the car to engage said rocking memberto'raise the door.

g 8. The combination with the door of an elevator shaft that is raisedand lowered and a car in said shaft, of means for latching and raisingthe door comprising a rocking member carried by the door, said rockingmember" having a latching projection to engage theshaft to hold the doorclosed, means on the door to hold said latching projection disengaged,means on the car to engage said rocking member to raise the door andmeans to automatically release said rocking member when thedoor is abouttolclose.

'9.' The combination with the door of an elevatorshaft that maybe raisedandlowere'd. and a car in said shaft, of means for latching and raisingand lowering the door comprising a'ro cking member carried by the door,saidrocking'membenhaving a latchingprojection to engage the shaft tohold the door closed;"means for latching said rocking member with saidproj ectio n aisea gag'ed from the shaft, means onthe door forautomatically releasingi said last named latching meanswhen the door isabout to close and means on the car for engaging said rocking member toraise and lower the door. '10. The combination with the door of anelevator shaft that may be raised and lowered and a car'in said shaft,of means for latching and raising and lowering the door comprising arocking member carried by the door, said rocking member having alatching projection to engage the shaft to hold the door closed, meansfor latching said rocking member with said projection disengaged fromthe shaft,.means on the door for automatically releasing said last namedlatching means when the door is about to close and means on the car forengaging 10 said rocking member to raise and lower the door, said lastnamed means adapted to move the rocking member into its latched positionwhen disengaged from the shaft.

7 WILLIAM M. BRUN ST.

